The layout block is made of heat -resistant silicone and can be used for a long time. Bringing sales can help you fix the position of color glass well. The layout block is 30.48 cm, freely cut, suitable for most sizes.Freedom bending, easy layout of straight lines or arbitrary angles. They have many small holes in the layout system, which are easy to use for fixing, and can be applied to multiple working panels, which are convenient but practical. It is very suitable for beginners and . Color glass kits can improve the quality and efficiency of work and save your time and energy. Colour:As Shown Material:Silica gel Package Contents: 6 x 12 inch stained glass panel layout 50 x mixed color push pins Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.